Shulou(Shulou.com)11/24 Report--

CTOnews.com, July 6, we know that the earth's orbit around the sun is not a standard circle, but an ellipse, so in the process of the earth's orbit around the sun, the distance between the earth and the sun is sometimes far and sometimes near, in which the closest position to the sun is called "perihelion", the farthest position is called "aphelion", and today is the farthest day of the year.

At 03:07 this afternoon, the earth was located in the furthest position from the sun in orbit, reaching a distance of 152 million kilometers, nearly 5 million kilometers more than the perihelion on January 4. The difference in the distance between the earth and the sun results in a difference of about 7 percent in the amount of solar radiation received by the earth.

Today the earth is farthest from the sun, but why are we having a hot summer? According to CTOnews.com query, aphelion does not mean that it is the coldest day on earth, or perihelion is the hottest day. The main factor affecting the earth's temperature is the tilt angle of the earth's axis, which determines the incident angle and exposure time of solar light in different seasons and different regions. In the northern hemisphere, when the Summer Solstice, the sun shines more directly and for longer on the ground, so the temperature is higher; when the Winter Solstice, it is the opposite. In the southern hemisphere, the opposite is true.

In fact, in the northern hemisphere, because of the large land area and severe climate change, it is hotter in summer and colder in winter. In the southern hemisphere, because of the large ocean area and gentle climate change, it is cooler in summer and warmer in winter.

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